Strand twisting apparatus



J1ly4,1944. AE. wmsmwv 2,353,102. STRAND TWISTING APPARATUS Filed Oct. 29, 1943 Z'Sheets-Sheet 2 l 4; i 86 6/ 4f ATTORNEYS support.

` the nyer at Patentes July 4, i944 5 ATE-NT". O'F-Flci; "TwrlzAPPABAT-tis: I'. i 'I l Albert l'l.l Winslow,v Mystic, Conn.,xassignor -Atwood Machine Company. a corporation of Connecticut Application October-29, 1 9423, lSerial, No. 508,129 4 claims. (o1. sii-ssi This invention relates to a device for the twist'-A ing or laying of strand materialand more particularly to a device adapted to impart more than one turn of twist to one or more strands for each revolution oi' the ilyer.

In such a device the` package or packagesirom which the strand material is supplied do not partake of the revolution of the yer.l -Tho f c strands are drawn from the supply package or packages-in a manner to form a loop which is carried by the iiyer around the package or packages. Assuming the supply package to be mounted on a stationary axis. two turns o i' twist are imparted for each revolution oi' the loop sbout'the package.'l Th'e manner in which the larger machine which is shown in c o-pe nd Ving application Serial No. 517,859. The Supply' packages are designated il from which the strands 'of material Il lead into-the hollow fspindle then downwardly together and radially outwardly as at -I2 and thence upwardly as at It to loop the strands upon themselves, which iocpis revolved about the axis or the spindle so` f that twoturns of twist or'lay are placed ,intoA the strands for eachsinglfturn that the loop makes about the spindle.' The upwardly exsupplv'package supportl is held stationary while mounted upon-.a rotating spindle with the yarn 4' looping about thesupply :package has been `accomplished in various ways vand it is the means by which this result is accomplished which is the feature oi this invention.

One ci the objects of this invention is to' provide a simple and eiilcient manner of positivelyholding the supplyv package support stationary while being mounted upon the revolving spindle which rotates the strands about the package In the accompanying drawings:

Fig. 1 is a diagrammatic view showing tending run of the work II is then guided from the machine through the ring il and between .leed rolls il and i8 and. thence ledss at il over pulley yI8 'and over suitable guides il and -20 to be packaged as at 2|, the package'being'.

operated by a surface drive 22 as' diagrammaticaily shown in-Eig. 1.

A suitable spindle is is beu; driven by e pulley 28 which is mounted dn the spindle. 'I'he spindle extends upwardly through -a bushing-2`i supporting the ball bearing 2l which is held in placel by a cover 3l, all 'in iixed relation to the stationary framework 28 oi the machine. 'I'he .spindle is shouldered as at Il which provides a seat for a flyer designated generally 32 and whichconsists o f a hub 3l with a lower disk Il secured at one end thereof and an upper disk il secured at the other upper end thereof. A-

'guide sheave or pulley Il is located in a recess 31 in this hub 3l and has its inner e with a hollow bore 38 in the spind the work is led downwardly throughthe hollow spindle' and over the pulley 8l it may extend ra.-`

dially outwardly' over the pulley sheave Il which is located in recess 4I in the edge of the yer disk Il and rotatably mounted in a bearing 4l.

,il section illustrating. the spindle, the support .for the supply .packages and the driving' errangement which is the subject matter of this invention, an assumed position oi the flyer drive shaft being shown dotted; Fig. 2 is a iragmsntal sectional view showingA right angles to the position shown Fig. 1:

Fig. 3 is a sectional view' illustratingl the mounting oi' one or the shafts carriedby the yer AY1mg. 4 is a section on line (-.4 oi Fim-2 Ilig.5isasectiononlinelloi llig. 3. The invention illustrated in this application iormsan alternative arrangement ci a partoi ass c Above the ayer s; the spindle 1s further sheui- 4 dered for the reception o1' bail bearings 42 and for rotatablymounting the supply package supportv or creci u comprising a hun engaging the lball bearing and a sleeve 48 fixed onthis hubirom which a deck plate 4l extends at right angles to the hub and spindle.- The deck plate is hanged asat 4I leaving a hollow portion Il in which the iiyer drive shaft extends.

Supported by-the'disks 34 and 35 (see Fig. 3) are sleeves Il each oi' which is provided with 'a' ange 5I and a reduced threaded portion -82' so which extends through an opening -53 in. the plate M and may be secured in dii'ierent positions of rotation in the vopening'by means of a nut 55 and I washer 58. 'The upper end .of this sleeve is also enlarged lto extend through and be rotatably' mounted in an opening Il in4 the plate Il. The

dge tangent' le so that as 2 essaies v lower end of the sleeve '50 carries a ball bearing- .It while the upper end carries a ball bearing I9,

both of which serve to rotatably mount the shaft in a position 4which is olf center with relation to the rotatably mounted sleeve (see Fig. 3). 'I'his'shaft 60 carries a gear designated 0l at its upper end with teeth 62 adapted to receive a 'sprocket chain. The hub 83 of this gear engages the ball bearings. The ange 'l5 extends over the ylower closure cap la while a flange Il fits into a groove in this lower cap.

The stationary bushing 2l is provided with a pair of toothed members or sprocket gears Bt and BI which may be formed as one piecewith `the bushing. A chain B2 engages the gear l@ and extends to the gear'lc, while a chain 83 engases the gear 8| and extends to another similar gear i0 for driving each of the shafts Bil.

-The hub 45 of thc creel or supply package support is also provided with toothed members or sprocket gears 84 and 8b, a chain Bt engages the gear M and extends about the gear at the upper end of shaft Sil while a companion chain 81 en gages the gear 85 and extends to and about the gear 8l of the diametrically oppositely located shaft t@ on the other side of' the fiyer so located'r as to be in dynamic balance withthe first said shaft. It will b e readily apparent thatany num.- ber of such shafts and'gear and sprocket arrangements may be provided to secure the desired drive for the conveying of the drive of the flyer from the fixed gears in the stationary por- :tion 21 through the flyer and back to the support for the supply packages or creci.

It will be readily apparent that if the diameters of the gears 80 and 8l ,are the same as the diameter of the gears 84 and 85 and the gears Bl and 10 are =of the same diameter. rotation of the shaft 30 which is caused by re- 'v volving the yer about the spindle will convey tothe creel orsupply package support a rotation irlA the opposite direction to the rotation of the iyer in the same amount that the shaft is rotated bythe belt driving the shaft from the gears 80 and Bi. Thus the creci or supply package support will remain in its same relative position to the frame or stationary as no slip will occur in the drives which are provided.

By revolving the sleeve 50 which has a shaft '80 to'one side of the center of the portion B2 which extends through the opening 53 I may -ti'ghten the chain as the gears are` thus moved relative to the axis of the spindle.

By the arrangement of chain and sprockets. driving from 'a stationary gear to. the flyer and from the'shaft rotated in the flyer back to the creel or supply package support Il have been able to provide/a very simple and eilicient means for mounting the creel or supply package. support upon the spindle so that no motion of the supply packages occur as the spindle rotates while perinitting ofthe oop to .pass about the supply "psckagesasrotati noccurs.`

I claim: i 1. In a strand twisting device, a spindle, a supply package -support lvirith-respect to which the spinale is rotatable, 'an maar mined member carried by and fixed with relation to said support, a second annular toothed member stationv 4ary with respect to said spindle, a, flyer carried by said spindle for revolving in a plane between the planes of said toothed members, a shaft carried by and rotatably mounted inthe yer and positioned to be revolved about said spindle, a pair of toothed members rotatable with said shaft 10 and exible meanshaving driving relation between one toothed member of the shaft and the toothed member' of the support and another flexible means having driving 'relation between the other toothed member of the shaft and the second toothed member, and means for tensioning said esible means.

2. In a strand twisting device, a spindle, a supply package support with respect to which the spindle is rotatable, a gear carried by and hxed with relation to said support. a second gear stationary with respect to said spindle, a flyer carried by said spindle for revolving in a plane between the planes of said sears. a. shaft carried by and rotatably mounted in the iver and positioned to be revolved about said spindle, a pair of gears rotatable with said shaft and a chain having driving relation between one gear of the shaft and the gear of the support and another y chain having driving relation between the other 3@ gear of the shaft and the second gear, and means for tensioning saidchain. Y

3. In astrand twisting device, a spindle, a supply packase support witlrrespect to which the spindle is rotatable, a pluralityof gears carried by and fixed with relation to said support, a

' plurality of second gears stationary with respect to said spindles. flyer carried by said spindle for revolving in a plane between the planes of said gears, a plurality of shafts carried by and 40 rotatably mounted in the flyer in equally angularly spaced relation and positioned to be. re- .volved about said spindle,'a-pluralityvof annular gears rotatable with each of said shafts and a chain having driving relation between one annular gear of the shaft and one of the sears of the support and another chain having driving relation lbetween the other annular gear of the shaft and one of the second gears.

4. In a strand twisting device, a spindle, a supply package support with respect to which the spindle is rotatable, a plurality of gears carried by and fixed with relation to said support, a plurality of second gears stationary with respect to said spindle, a flyer comprising a pair of disks carried by said spindle for revolving in a plane between the planes of said gears, a plurality of bearings carried by and rotatably mounted in theA tlyer'in equally angularly spaced'relation and I positioned to be'revolved about said spindle, a

op rotatable-shaft carried by each of said bearings and movable about the axis thereof, a plurality of annular gears carried by and rotatable with each of said shafts and a chain having driving relation between one annular gear of the shaft and one of the 'gears of the support and anohelr chain having driving `relation between theo her annular gear of the shaft and one of the second gears, said bearing eccentrically mounting said shafts and being rotatable about their own axes to move said shafts to tension said chains.

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